| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a hydraulic actuator system that opens/closes a valve device of an internal combustion engine, while operating the valve device in conformity to the internal combustion engine. <P>SOLUTION: A hydraulic actuator system 10 includes: a hydraulic actuator 20; a first rotary valve 60A that is provided between a hydraulic pump 11 and the hydraulic actuator 20 to change the timing when hydraulic oil L is supplied to the hydraulic actuator 20, and to change the rate of change in flow rate of the hydraulic oil L between when the flow rate of the hydraulic oil L supplied to the hydraulic actuator 20 is increased and when it is reduced; and a second rotary valve 60B that is provided between the hydraulic pump 11 and the hydraulic actuator 20 to change the timing when the hydraulic oil L is discharged from the hydraulic actuator 20, and to change the rate of change in the flow rate of the hydraulic oil L between when the flow rate of the hydraulic oil L discharged from the hydraulic actuator 20 is increased and when it is reduced. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
